ENERGY STORAGE APPARATUS

An energy storage apparatus includes a first semiconductor switch and a second semiconductor switch provided in series on a power line between an energy storage device and a negative terminal, a cutoff control switch connected to the first and second semiconductor switches to simultaneously turn off the first and second semiconductor switches when an abnormality of the energy storage device is detected by a management controller, and an external charge detector to simultaneously turn on the first and second semiconductor switches when detecting that an external power supply has been connected to a positive terminal and the negative terminal.